Soap actors don't have a shot in hell of knowing their characters better than fans. This show has had more than 12,000 episodes. There are things done and said about characters in episodes that the characters don't appear in. Things are done and said in scenes they don't appear in. Plus, most actors tend to look at their characters from their perspective only (which is normal). With Sami, some time in the last years, her lies seem to have been suddenly swapped to truth. It goes back and forth and it's probably my biggest frustration with the show over the last few years. Either way, I don't think she's understood her character for a while.